<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref } from 'vue'
import {ElMessage} from 'element-plus'
//控制注册与登录表单的显示， 默认显示注册
const isRegister = ref(false)

//定义数据模型
const registerData = ref({
    username:'',
    password:'',
    rePassword:''
})

//校验密码是否一致
const checkPassword = (rule, value, callback) => {
    if(value == ' '){
        callback(new Error('请输入密码'))
    }else if (value !== registerData.value.password){
        callback(new Error('两次密码不一致'))
    }else {
        callback()
    }
}

//定义表单验证规则
const rules = ref({
    username:[
        {required:true, message:'请输入用户名', trigger:'blur'},
        {min:5, max:16, message:'长度在5-16个字符', trigger:'blur'}
    ],
    password:[
        {required:true, message:'请输入密码', trigger:'blur'},
        {min:6, max:15, message:'长度在6-15个字符', trigger:'blur'}
    ]
    ,
    rePassword:[
        {validator: checkPassword, trigger:'blur'}
    ]
})

//注册方法
import {userRegisterService , userLoginService} from '@/api/user.js'
const register = async() => {
    let result = await userRegisterService(registerData.value)
    /*if(result.code == 0){
        //注册成功
        //提示
        alert(result.msg?result.msg:'注册成功')
        //跳转登录页面
        //this.$router.push('/login')
    }else {
        //提示
        alert('注册失败')
    }*/
    //alert(result.msg?result.msg:'注册成功')
    ElMessage.success(result.msg?result.msg:'注册成功')
    
}

//复用注册数据
//表单数据校验
//登录函数
// 定义一个异步登录函数
import { useTokenStore } from '@/stores/token.js'
import { useRouter } from 'vue-router';
const tokenStore = useTokenStore();
const router = useRouter();

// 定义一个异步函数login
const login = async() => {
    // 调用用户登录服务并等待结果，使用异步等待确保处理登录响应
    let reslut = await userLoginService(registerData.value)

    // 如果登录成功，则提示并跳转
    // 使用ElMessage.success显示成功消息，reslut.msg存在时显示，否则显示默认的'登录成功'
    // 使用token设置到piana
    
        tokenStore.setToken(reslut.data)
    
    
    ElMessage.success(reslut.msg?reslut.msg:'登录成功')
    
   
    
    // 跳转到主页
    router.push('/')  
}

//定义函数，清空数据
const clearRegisterData = () =>{
    registerData.value={
        username:'',
        password:'',
        rePassword:''
    }
}
</script>

<template>
    <el-row class="login-page">
        <el-col :span="12" class="bg"></el-col>
        <el-col :span="6" :offset="3" class="form">
            <!-- 注册表单 -->
            <el-form ref="form" size="large" autocomplete="off" v-if="isRegister"  :model="registerData"  :rules=' rules'>
                <el-form-item>
                    <h1>注册</h1>
                </el-form-item>
                <el-form-item prop="username">
                    <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerData.username"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input :prefix-icon="Lock" type="password" placeholder="请输入密码" v-model="registerData.password"></el-input>
                </el-form-item>
                <el-form-item prop="rePassword">
                    <el-input :prefix-icon="Lock" type="password" placeholder="请输入再次密码" v-model="registerData.rePassword"></el-input>
                </el-form-item>
                <!-- 注册按钮 -->
                <el-form-item>
                    <el-button class="button" type="primary" auto-insert-space  @click="register">
                        注册
                    </el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = false;clearRegisterData()">
                        ← 返回
                    </el-link>
                </el-form-item>
            </el-form>
            <!-- 登录表单 -->
            <el-form ref="formdl" size="large" autocomplete="off" v-else :model="registerData" :rules="rules">
                <el-form-item>
                    <h1>登录</h1>
                </el-form-item>
                <el-form-item prop="username">
                    <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerData.username"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input name="password" :prefix-icon="Lock" type="password" placeholder="请输入密码" v-model="registerData.password"></el-input>
                </el-form-item>
                <el-form-item class="flex">
                    <div class="flex">
                        <el-checkbox>记住我</el-checkbox>
                        <el-link type="primary" :underline="false">忘记密码？</el-link>
                    </div>
                </el-form-item>
                <!-- 登录按钮 -->
                <el-form-item>
                    <el-button class="button" type="primary" auto-insert-space @click="login">登录</el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = true;clearRegisterData()">
                        注册 →
                    </el-link>
                </el-form-item>
            </el-form>
        </el-col>
    </el-row>
</template>

<style lang="scss" scoped>
/* 样式 */
.login-page {
    height: 100vh;
    background-color: #fff;

    .bg {
        background:
            url('@/assets/logo2.png') no-repeat  60% center/ 240px auto,
            url('@/assets/login_bg.jpg') no-repeat  center/ cover;
        border-radius: 0 20px 20px 0;
    }

    .form {
        display: flex;
        flex-direction: column;
        justify-content: center;
        user-select: none;

        .title {
            margin: 0 auto;
        }

        .button {
            width: 100%;
        }

        .flex {
            width: 100%;
            display: flex;
            justify-content: space-between;
        }
    }
}
</style>